/* $NetBSD: ata_raid_nvidia.c,v 1.2 2014/03/25 16:19:13 christos Exp $ */ /*- * Copyright (c) 2000 - 2008 Søren Schmidt * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer, * without modification, immediately at the beginning of the file. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * Support for parsing nVIDIA MediaShield RAID controller configuration blocks. * * Adapted to NetBSD by Tatoku Ogaito (tacha@NetBSD.org) */ #include __KERNEL_RCSID(0, "$NetBSD: ata_raid_nvidia.c,v 1.2 2014/03/25 16:19:13 christos Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef ATA_RAID_DEBUG #define DPRINTF(x) printf x #else #define DPRINTF(x) /* nothing */ #endif #ifdef ATA_RAID_DEBUG static const char * ata_raid_nvidia_type(int type) { static char buffer[16]; switch (type) { case NV_T_SPAN: return "SPAN"; case NV_T_RAID0: return "RAID0"; case NV_T_RAID1: return "RAID1"; case NV_T_RAID3: return "RAID3"; case NV_T_RAID5: return "RAID5"; case NV_T_RAID01: return "RAID0+1"; default: snprintf(buffer, sizeof(buffer), "UNKNOWN 0x%02x", type); return buffer; } } static void ata_raid_nvidia_print_info(struct nvidia_raid_conf *info) { printf("******** ATA nVidia MediaShield Metadata ********\n"); printf("nvidia_id <%.8s>\n", info->nvidia_id); printf("config_size %d\n", info->config_size); printf("checksum 0x%08x\n", info->checksum); printf("version 0x%04x\n", info->version); printf("disk_number %d\n", info->disk_number); printf("dummy_0 0x%02x\n", info->dummy_0); printf("total_sectors %d\n", info->total_sectors); printf("sectors_size %d\n", info->sector_size); printf("serial %.16s\n", info->serial); printf("revision %.4s\n", info->revision); printf("dummy_1 0x%08x\n", info->dummy_1); printf("magic_0 0x%08x\n", info->magic_0); printf("magic_1 0x%016jx\n", info->magic_1); printf("magic_2 0x%016jx\n", info->magic_2); printf("flags 0x%02x\n", info->flags); printf("array_width %d\n", info->array_width); printf("total_disks %d\n", info->total_disks); printf("dummy_2 0x%02x\n", info->dummy_2); printf("type %s\n", ata_raid_nvidia_type(info->type)); printf("dummy_3 0x%04x\n", info->dummy_3); printf("stripe_sectors %d\n", info->stripe_sectors); printf("stripe_bytes %d\n", info->stripe_bytes); printf("stripe_shift %d\n", info->stripe_shift); printf("stripe_mask 0x%08x\n", info->stripe_mask); printf("stripe_sizesectors %d\n", info->stripe_sizesectors); printf("stripe_sizebytes %d\n", info->stripe_sizebytes); printf("rebuild_lba %d\n", info->rebuild_lba); printf("dummy_4 0x%08x\n", info->dummy_4); printf("dummy_5 0x%08x\n", info->dummy_5); printf("status 0x%08x\n", info->status); printf("=================================================\n"); } #endif int ata_raid_read_config_nvidia(struct wd_softc *sc) { struct nvidia_raid_conf *info; struct vnode *vp; int bmajor, error, count; dev_t dev; uint32_t cksum, *ckptr; struct ataraid_array_info *aai; struct ataraid_disk_info *adi; static struct _arrayno { uint64_t magic1; uint64_t magic2; struct _arrayno *next; } arrayno = { 0, 0, NULL}, *anptr; info = malloc(sizeof(*info), M_DEVBUF, M_WAITOK); bmajor = devsw_name2blk(device_xname(sc->sc_dev), NULL, 0); /* Get a vnode for the raw partition of this disk. */ dev = MAKEDISKDEV(bmajor, device_unit(sc->sc_dev), RAW_PART); error = bdevvp(dev, &vp); if (error) goto out; error = VOP_OPEN(vp, FREAD, NOCRED); if (error) { vput(vp); goto out; } error = ata_raid_config_block_rw(vp, NVIDIA_LBA(sc), info, sizeof(*info), B_READ); VOP_CLOSE(vp, FREAD, NOCRED); vput(vp); if (error) { aprint_error_dev(sc->sc_dev, "error %d reading nVidia MediaShield config block\n", error); goto out; } #ifdef ATA_RAID_DEBUG ata_raid_nvidia_print_info(info); #endif /* Check the signature. */ if (strncmp(info->nvidia_id, NV_MAGIC, strlen(NV_MAGIC)) != 0) { DPRINTF(("%s: nVidia signature check failed\n", device_xname(sc->sc_dev))); error = ESRCH; goto out; } /* check if the checksum is OK */ for (cksum = 0, ckptr = (uint32_t *)info, count = 0; count < info->config_size; count++) cksum += *ckptr++; if (cksum) { DPRINTF(("%s: nVidia checksum failed (0x%02x)\n", device_xname(sc->sc_dev), cksum)); error = ESRCH; goto out; } /* * Lookup or allocate a new array info structure for * this array. Since nVidia raid information does not * provides array# directory, we must count the number. * The available traces are magic_1 and magic_2. */ for (anptr = &arrayno, count = 0; anptr->next; anptr = anptr->next, count++) { if (anptr->magic1 == info->magic_1 && anptr->magic2 == info->magic_2) break; } if (anptr->next == NULL) { /* new array */ anptr->magic1 = info->magic_1; anptr->magic2 = info->magic_2; anptr->next = malloc(sizeof(arrayno), M_DEVBUF, M_WAITOK); } aai = ata_raid_get_array_info(ATA_RAID_TYPE_NVIDIA, count); aai->aai_status = AAI_S_READY; if (info->status & NV_S_DEGRADED) aai->aai_status |= AAI_S_DEGRADED; switch (info->type) { case NV_T_RAID0: aai->aai_level = AAI_L_RAID0; break; case NV_T_RAID1: aai->aai_level = AAI_L_RAID1; break; case NV_T_RAID5: aai->aai_level = AAI_L_RAID5; break; case NV_T_RAID01: aai->aai_level = AAI_L_RAID0 | AAI_L_RAID1; break; case NV_T_SPAN: aai->aai_level = AAI_L_SPAN; break; default: aprint_error_dev(sc->sc_dev, "unknown nVidia type 0x%02x\n", info->type); error = EINVAL; goto out; } aai->aai_type = ATA_RAID_TYPE_NVIDIA; aai->aai_interleave = info->stripe_sectors; aai->aai_width = info->array_width; aai->aai_ndisks = info->total_disks; aai->aai_capacity = info->total_sectors; aai->aai_heads = 255; aai->aai_sectors = 63; aai->aai_cylinders = aai->aai_capacity / (aai->aai_heads * aai->aai_sectors); aai->aai_offset = 0; aai->aai_reserved = 2; adi = &aai->aai_disks[info->disk_number]; adi->adi_dev = sc->sc_dev; adi->adi_status = ADI_S_ONLINE | ADI_S_ASSIGNED; adi->adi_sectors = aai->aai_capacity; adi->adi_compsize = aai->aai_capacity / info->array_width; error = 0; out: free(info, M_DEVBUF); return (error); }